Cycles of Matter: Carbon Cycle

Another term for autotroph is

• animal consumers

• animal producers

• plant producers

• plant consumers

Which form of Carbon is taken in by plants? 

• carbon dioxide

• methane

• oxygen

• glucose

What process takes carbon dioxide out of the air

• Photosynthesis 

• Cellular Respiration

Which term best describes heterotrophs? 

• Plants; producers

• Plants; consumers

• Animals; consumers

• Animals; producers

Organisms that cannot make their own food and must obtain energy from external sources are called

• autotrophs (producers)

• heterotrophs (consumers)

What process releases Carbon dioxide back into the air

• Photosynthesis 

• Cellular Respiration

In which way are photosynthesis and cellular respiration different?

• Cellular respiration produces oxygen, while photosynthesis uses oxygen.

• Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.

• Photosynthesis releases energy, while cellular respiration stores energy.

Which of the following is an example of a carbon sink?

• limestone rock

• earthquake

• clouds

• Fred

Which form of carbon is released from volcanoes back into the atmosphere? 

• carbon dioxide

• ethylene

• calcium carbonate

When humans burn fossil fuels, most of the carbon quickly enters the _____________ as carbon dioxide.

• ocean

• atmosphere

• sun